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Shared base functionality for implementing engines for the 51Degrees Pipeline API

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/* *********************************************************************
 * This Original Work is copyright of 51 Degrees Mobile Experts Limited.
 * Copyright 2023 51 Degrees Mobile Experts Limited, Davidson House,
 * Forbury Square, Reading, Berkshire, United Kingdom RG1 3EU.
 *
 * This Original Work is licensed under the European Union Public Licence
 * (EUPL) v.1.2 and is subject to its terms as set out below.
 *
 * If a copy of the EUPL was not distributed with this file, You can obtain
 * one at https://opensource.org/licenses/EUPL-1.2.
 *
 * The 'Compatible Licences' set out in the Appendix to the EUPL (as may be
 * amended by the European Commission) shall be deemed incompatible for
 * the purposes of the Work and the provisions of the compatibility
 * clause in Article 5 of the EUPL shall not apply.
 *
 * If using the Work as, or as part of, a network application, by
 * including the attribution notice(s) required under Article 5 of the EUPL
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package fiftyone.pipeline.engines.caching;

import fiftyone.pipeline.core.data.ElementData;
import fiftyone.pipeline.core.data.EvidenceKeyFilter;
import fiftyone.pipeline.core.flowelements.FlowElement;
import fiftyone.pipeline.engines.configuration.CacheConfiguration;

/**
 * Default implementation of {@link FlowCache} using the
 * {@link DataKeyedCacheBase}.
 * @see Specification
 */
@SuppressWarnings("rawtypes")
public class FlowCacheDefault
    extends DataKeyedCacheBase
    implements FlowCache {

    private FlowElement flowElement;

    public FlowCacheDefault(CacheConfiguration configuration) {
        super(configuration);
    }

    @Override
    public FlowElement getFlowElement() {
        return flowElement;
    }

    @Override
    public void setFlowElement(FlowElement flowElement) {
        this.flowElement = flowElement;
    }

    @Override
    protected EvidenceKeyFilter getFilter() {
        return flowElement.getEvidenceKeyFilter();
    }
}